Home / 10,457.96-15,690.36-4,911.87

Finding the Fourth Proportional to 10,457.96, 15,690.36 and 4,911.87

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Solution

The fourth proportional to 10,457.96, 15,690.36 and 4,911.87 is: 7,369.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,457.96 : 15,690.36 = 4,911.87 : x
  2. Step 2: Convert to fraction form
    10,457.96/15,690.36 = 4,911.87/x
  3. Step 3: Cross multiply
    10,457.96x = 15,690.36 × 4,911.87
  4. Step 4: Simplify right side
    10,457.96x = 77,068,925.81
  5. Step 5: Solve for x
    x = 77,068,925.81/10,457.96
  6. Step 6: Final answer
    x = 7,369.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.